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Chronic wounds

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https://www.readbyqxmd.com/read/28640580/a-bio-inspired-alginate-gum-arabic-hydrogel-with-micro-nano-scale-structures-for-controlled-drug-release-in-chronic-wound-healing
#1
Mi Li, Haichang Li, Xiangguang Li, Hua Zhu, Zihui Xu, Lianqing Liu, Jianjie Ma, Mingjun Zhang
Bio-polymeric hydrogels have drawn increasingly research interests in biomaterials due to its tunable physical and chemical properties for both creating bioactive cellular micro-environment and serving as sustainable therapeutic reagents. Inspired by a naturally occurring hydrogel secreted from the carnivorous Sundew plant for trapping insects, here we have developed a bio-inspired hydrogel to deliver mitsugumin53 (MG53), an important protein in cell membrane repair, for chronic wound healing. Both chemical compositions and micro/nano morphological properties inherent from the natural Sundew hydrogel were mimicked using sodium alginate and gum arabic with calcium ion-mediated cross-linking...
June 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28636254/pirfenidone-reduces-subchondral-bone-loss-and-fibrosis-after-murine-knee-cartilage-injury
#2
Deva D Chan, Jun Li, Wei Luo, Dan N Predescu, Brian J Cole, Anna Plaas
Pirfenidone is an anti-inflammatory and anti-fibrotic drug that has shown efficacy in lung and kidney fibrosis. Because inflammation and fibrosis have been linked to the progression of osteoarthritis, we investigated the effects of oral Pirfenidone in a mouse model of cartilage injury, which results in chronic inflammation and joint-wide fibrosis in mice that lack hyaluronan synthase 1 (Has1(-/-) ) in comparison to wild-type. Femoral cartilage was surgically injured in wild-type and Has1(-/-) mice, and Pirfenidone was administered in food starting after 3 days...
June 21, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28635188/the-financial-and-quality-of-life-cost-to-patients-living-with-a-chronic-wound-in-the-community
#3
Suzanne Kapp, Nick Santamaria
Chronic wounds are associated with financial and personal costs. The system level expense associated with chronic wounds has been established, however, the out-of-pocket cost incurred by individuals who self-fund has not been the focus of extensive investigation. Recently, there has been renewed interest in evaluating quality of life, in line with the shift to patient enablement and self-care in chronic disease management. The objectives of this research were to describe the out-of-pocket wound treatment costs and the quality of life of people who have chronic wounds...
June 20, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28630851/vacuum-assisted-closure-in-patients-with-post-operative-infections-after-instrumented-spine-surgery-a-series-of-12-cases
#4
Maya Kale, Pravin Padalkar, Varshil Mehta
INTRODUCTION: Post-operative wound infections after spinal surgery is a very serious problem, leading to a risk of significant morbidity which may even lead to prolonged hospitalization. Various treatment protocols have been recommended for debridement, antibiotic, and soft-tissue management, but with mixed results. However, the risk of morbidity is still high with these treatment options. Vacuum-assisted closure (VAC) system has been gaining popularity recently in the management of subacute, acute, and chronic wounds...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28630831/unusual-presentation-of-mycetoma-of-the-foot-a-rare-case-report
#5
Amit Grover, Prashanth Nagaraj, Vinay M Joseph, Daksh Gadi
INTRODUCTION: Mycetoma is a chronic granulomatous infection. It is caused by actinomycetes or fungi. It is common in tropical countries and males. Predisposing conditions include malnutrition, poor hygiene, history of trauma, wounds on barefeet, and systemic infections. Eumycotic mycetoma commonly involves lower extremities whereas actinomycosis affects the cervicofacial, thoracic, and abdominal regions. Mycetoma presents with a chronic indurated ulcerated plague with swelling and yellowish discharge of sulfur granules...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28630071/albumin-inhibits-pseudomonas-aeruginosa-quorum-sensing-and-alters-polymicrobial-interactions
#6
Allie Clinton Smith, Anne Rice, Bryan Sutton, Rebecca Gabrilska, Aimee K Wessel, Marvin Whiteley, Kendra P Rumbaugh
Polymicrobial interactions are complex and can influence the course of an infection, as is the case when two or more species exhibit a synergism that produces a disease state not seen with any of the individual species alone. Cell-to-cell signaling is key to many of these interactions, but little is understood about how the host environment influences polymicrobial interactions or signaling between bacteria. Chronic wounds are typically polymicrobial, with Staphylococcus aureus and Pseudomonas aeruginosa being the two most commonly isolated species...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28628259/exercise-prior-to-but-not-concomitant-with-stress-reverses-stress-induced-delayed-skin-wound-healing
#7
Bianca O Saguie, Bruna Romana-Souza, Rayssa L Martins, Andréa Monte-Alto-Costa
Stress-induced prolonged inflammation impairs cutaneous wound healing. Exercise may inhibit this effect via an anti-inflammatory mechanism. Our aim was to investigate the effect of moderate exercise on skin wound healing in chronically stressed mice. Mice were trained five times per week on a treadmill or received no training. Mice underwent daily rotational stress from the 6(th) week until euthanasia. During the 8(th) week, two wounds were created in the dorsum and collected 10 days later. A control group only received wounds...
June 19, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28625669/role-of-language-discordance-in-complication-and-readmission-rate-after-infrainguinal-bypass
#8
Elica Inagaki, Alik Farber, Jeffrey Kalish, Jeffrey J Siracuse, Clara Zhu, Denis V Rybin, Gheorghe Doros, Mohammad H Eslami
OBJECTIVE: Studies have shown that language discordance between treatment teams and patients leads to worse patient outcomes, including longer hospital stays, higher rates of readmission, impaired comprehension of discharge instructions, and lower treatment adherence. Yet, there is a paucity of data evaluating the effects of language discordance on postoperative outcomes among vascular surgery patients. This study compared 30-day postoperative complications and readmissions after nonemergent infrainguinal bypass between non-English-speaking (NES) and English-speaking (ES) patients...
June 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28625307/postcesarean-delivery-analgesia
#9
REVIEW
Brendan Carvalho, Alexander J Butwick
Effective pain management should be a key priority in women undergoing cesarean delivery. Suboptimal perioperative pain management is associated with chronic pain, greater opioid use, delayed functional recovery, impaired maternal-fetal bonding, and increased postpartum depression. Severe acute postoperative pain is also strongly associated with persistent pain after cesarean delivery. Multimodal analgesia is the core principle for cesarean delivery pain management. The use of neuraxial morphine and opioid-sparing adjuncts such as scheduled nonsteroidal anti-inflammatory medications and acetaminophen is recommended for all women undergoing cesarean delivery with neuraxial anesthesia unless contraindicated...
March 2017: Best Practice & Research. Clinical Anaesthesiology
https://www.readbyqxmd.com/read/28624002/pathophysiology-of-venous-ulceration
#10
REVIEW
Joel M Crawford, Brajesh K Lal, Walter N Durán, Peter J Pappas
Our understanding of the pathophysiologic process of venous ulceration has dramatically increased during the past two decades because of dedicated, venous-specific basic science research. Currently, the mechanisms regulating venous ulceration are a combination of macroscopic and microscopic pathologic processes. Macroscopic alterations refer to pathologic processes related to varicose vein formation, vein wall architecture, and cellular abnormalities that impair venous function. These processes are primarily caused by genetic factors that lead to the destruction of normal vein wall architecture and venous hypertension...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28623447/new-approaches-to-gastroesophageal-reflux-disease
#11
William Kethman, Mary Hawn
BACKGROUND: Gastroesophageal reflux disease (GERD) is the most common gastrointestinal disorder of the esophagus. It is a chronic, progressive disorder that presents most typically with heartburn and regurgitation and atypically with chest pain, dysphagia, chronic cough, globus, or sore throat. The mainstay for diagnosis and characterization of the disorder is esophagoduodenoscopy (EGD), high-resolution esophageal manometry, and symptom-associated ambulatory esophageal pH impedance monitoring...
June 16, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28622477/an-examination-of-factors-affecting-the-length-of-stay-in-a-palliative-care-center
#12
Metin Dincer, Kadriye Kahveci, Cihan Doger
BACKGROUND: With the increase in elderly population, life-threatening chronic diseases are increasing, simultaneously increasing the need for palliative care centers (PCCs). OBJECTIVES: To evaluate the factors affecting the length of stay (LOS) and discharge of patients from a PCC. METHODS: A retrospective scan was made of the records of patients followed up in the PCC between January 2013 and March 2016. A record was made of patient age, gender, diagnosis, conditions/comorbidities, Glasgow Coma Scale, Karnofsky Performance Scale, LOS, prognosis (exitus or surviving), percutaneous endoscopic gastrostomy (PEG), tracheostomy, mechanical ventilator, nutrition (total parenteral nutrition [TPN] or enteral nutrition), and the results of cultures taken during stay in PCCs (blood, tracheal aspirate, urine, rectal swab, wound)...
June 16, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28621502/amniotic-membrane-stimulates-cell-migration-by-modulating-transforming-growth-factor-%C3%AE-signaling
#13
Catalina Ruiz-Cañada, Ángel Bernabé-García, Sergio Liarte, Carmen Luisa Insausti, Diego Angosto, José María Moraleda, Gregorio Castellanos, Francisco José Nicolás
Keratinocyte migration is a mandatory aspect of wound-healing. We have previously shown that Amniotic Membrane (AM) applied to chronic wounds assists healing through a process resulting in overexpression of c-Jun at the wound's leading edge. Also, we have demonstrated that amniotic membrane modifies the genetic program induced by TGF-ß in chronic wounds. In this paper, we used a scratch assay of Mv1Lu and HaCaT cells to examine the influence of AM application on the underlying signaling during scratch closure...
June 16, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28621240/il-36%C3%AE-suppresses-proliferation-of-ovarian-cancer-cells
#14
Lei Chang, Ruixia Guo, Zhongfu Yuan
Interleukin-36α (IL-36α), also formerly known as IL-1F6, is pertaining to IL-1 family members that has been shown to play an important pro-inflammatory role in chronic immune disorders. However, the role IL-36α in the setting of cancer remains unknown. Here, in our study, to investigate the clinical relevance of IL-36α in ovarian cancer, clinicopathological significance as well as expression level of IL-36α were analyzed in epithelial ovarian cancer clinical tissues and paired normal control. To explore the biological role of IL-36α in vitro in epithelial ovarian cancer cells, both overexpression and knockdown of IL-36α were performed...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28620820/cytoglobin-inhibits-migration-through-pi3k-akt-mtor-pathway-in-fibroblast-cells
#15
Selami Demirci, Ayşegül Doğan, Hüseyin Apdik, Emre Can Tuysuz, Sukru Gulluoglu, Omer Faruk Bayrak, Fikrettin Şahin
Cell proliferation and migration are crucial in many physiological processes including development, cancer, tissue repair, and wound healing. Cell migration is regulated by several signaling molecules. Identification of genes related to cell migration is required to understand molecular mechanism of non-healing chronic wounds which is a major concern in clinics. In the current study, the role of cytoglobin (CYGB) gene in fıbroblast cell migration and proliferation was described. L929 mouse fibroblast cells were transduced with lentiviral particles for CYGB and GFP, and analyzed for cell proliferation and migration ability...
June 15, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28620441/impaired-wound-healing-facts-and-hypotheses-for-multi-professional-considerations-in-predictive-preventive-and-personalised-medicine
#16
REVIEW
Eden Avishai, Kristina Yeghiazaryan, Olga Golubnitschaja
Whereas the physiologic wound healing (WH) successfully proceeds through the clearly defined sequence of the individual phases of wound healing, chronic non-healing wounds/ulcers fail to complete the individual stages and the entire healing process. There are many risk factors both modifiable (such as stress, smoking, inappropriate alcohol consumption, malnutrition, obesity, diabetes, cardio-vascular disease, etc.) and non-modifiable (such as genetic diseases and ageing) strongly contributing to the impaired WH...
March 2017: EPMA Journal
https://www.readbyqxmd.com/read/28619238/mesenchymal-stem-cell-in-venous-leg-ulcer-an-intoxicating-therapy
#17
REVIEW
Anjali Athanerey, Pradeep Kumar Patra, Awanish Kumar
Venous leg ulcers (VLU) are a prevalent and reoccurring type of complicated wound, turning as a considerable public healthcare issue, with critical social and economic concern. There are both medical and surgical therapies to treat venous leg ulcers; however, a cure does not yet exist. Mesenchymal stem cells (MSC) are capable and proved of accelerating wound healing in vivo and their study with human chronic wounds is currently awaited. MSCs are a promising source of adult progenitor cells for cellular therapy and have been demonstrated to differentiate into various mesenchymal cell lineages...
June 7, 2017: Journal of Tissue Viability
https://www.readbyqxmd.com/read/28618841/assessment-of-solid-microneedle-rollers-to-enhance-transmembrane-delivery-of-doxycycline-and-inhibition-of-mmp-activity
#18
Abbie Omolu, Maryse Bailly, Richard M Day
Many chronic wounds exhibit high matrix metalloproteinase (MMP) activity that impedes the normal wound healing process. Intradermal delivery (IDD) of sub-antimicrobial concentrations of doxycycline, as an MMP inhibitor, could target early stages of chronic wound development and inhibit further wound progression. To deliver doxycycline intradermally, the skin barrier must be disrupted. Microneedle rollers offer a minimally invasive technique to penetrate the skin by creating multiple microchannels that act as temporary conduits for drugs to diffuse through...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28616815/-prevention-of-nosocomial-infections-and-antibiotic-resistance-in-nursing-homes
#19
REVIEW
Markus Bleckwenn, Judith Hammerschmidt, Claudia Rösing, Manuela Klaschik
BACKGROUND: Nosocomial infections and multidrug-resistant organisms are an increasing problem in nursing homes worldwide; therefore, new approaches for infection control need to be developed. OBJECTIVES: This article gives an overview of infections in nursing homes, their medical treatment and previous measures for infection prevention. MATERIALS AND METHODS: The article is based on a selective literature search including the literature database PubMed...
June 14, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28616231/lymph-node-transfer-for-refractory-infectious-sites-caused-by-trauma
#20
Makoto Mihara, Hisako Hara, Kazuki Kikuchi
OBJECTIVE: In this report, we placed focus on the immunological function of lymph nodes and performed lymph node transfer via a free flap to a site of refractory infection. CASE AND RESULTS: Case 1 describes a 34-year-old male suffering from compound fractures with severe crush injuries and burns in the right ankle joint. A 20 × 15 cm skin defect was observed around the right malleolus medialis, along with denuded tendons with bacterial infection. After conservative treatment, we transferred a lymph-node-containing free superficial circumflex iliac artery perforator flap to the region, with minimum debridement...
2017: SAGE open medical case reports
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